1. People are NOT limited to using only 10% of their brains.

You use your whole brain, but not all neurons are actively firing at all times. You also dont press every key on the keyboard all at once when typing. Sorry for ruining the entire basis for both Limitless and Inception.

2. You're NOT born with all of the brain cells you'll have for life.

"Conventional wisdom" states that you're born with all of your brain cells and that once they're killed they'll never grow back. But scientists have witnessed neurogenesis many times in lab animals and humans alike.

3. Gold fish memory is NOT limited to 3 seconds.

In many tests, gold fish have been trained to memorize paths through mazes.

4. Men do NOT think about sex every seven seconds.

There's no way to scientific way to measure this. On average, researchers have found men to fantasize about once a day. (image via Cheezburger)

9. Swallowed chewing gum does NOT stay in your system for years.

10. The color red does NOT anger bulls.

It's the motion of the cape and the taunting of the matadors that gets them riled up. Bulls can't even detect the color red.

11. Mother birds do NOT abandon baby chicks that have been returned to the nest by humans.

If a baby bird falls from its nest, many people are reluctant to return it for fear that the mother will abandon it for smelling like the human that picked it up. This is false. Mother birds will still care for their own young, despite having been handled by humans.

14. Duck quacks DO echo.

15. Police are NOT required by law to tell you that they're police.

Forget how entrapment is portrayed in popular movies. Picture this: an undercover cop walks into a dealer's house hoping to score some contraband. The wise dealer asks, "are you a cop?" to which his prospective buyer says, "Aw shucks! You got me! I'm a cop. What gave me away?" The two have a good laugh, wishing each other luck as they part. This is simply not how entrapment works.

17. Marie Antoinette NEVER said "Let them eat cake."

18. Lightning OFTEN strikes the same place twice.

Ever seen a lightning rod? They're designed specifically to attract and absorb lightning strikes.

19. Most people in the Middle Ages did NOT believe that the Earth was flat.

The ancient Greeks knew the earth was spherical, and this knowledge was never lost. Many doubted that Christopher Columbus would find a shorter passage to India by sailing West, and they were correct. But they didn't think there was any danger of falling of the "edge" of the Earth.

20. Vikings did NOT wear horns.

Horns look pretty bad-ass. But no genuine Viking helmets discovered have ever had horns. They actually looked more like this.